must contain 7-(3+1+1) = 2 mines. The three squares at top right have to contain exactly one (because of the 4); the two at bottom have to contain exactly 1 (because of the 1); so the remaining two squares are clear. Now there is only one place to put the extra mine needed by the 3, namely to its southeast.

At this point we have the following unresolvable unknowns:

Regions A and B: the three possibilities above. Region C: the two possibilities above. Region D, top right: exactly one of those three cells has a mine in it.

To be more explicit about what is guaranteed:

the only guaranteed cells are in region D. In the 2x2 square at the bottom of that region, there is a mine in its southwest corner but not in any of the other three squares.

Top right region is trivial to solve, you don't need to consider other regions (which are unsolvable).

2 below the 5 has 2 mines already. So tile under it is empty. So there is a mine below that empty tile. And given what numbers you receive afterwards, you will be certainly able to determine other mine's position.